Analysis of the impact of power loss due to snail trails in a 95-kWp photovoltaic power system

Wonwook Oh; Hoonjoo Choi; Donghwan Kim

doi:10.1016/j.microrel.2021.114230

Analysis of the impact of power loss due to snail trails in a 95-kWp photovoltaic power system

Wonwook Oh, Hoonjoo Choi, Donghwan Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Snail trails are a prevalent degradation phenomenon observed in solar power plants. In a previous study, it was determined that snail trails affected only the appearance of solar cells, without significantly contributing to actual power loss. However, when snail trails are accompanied by solar cell cracks, power loss occurs. We analyzed the snail trails in a specific module in a 95 kW power plant that has been operational since 2015. Moreover, we evaluated the power generation loss arising from snail trails using current–voltage measurements and electroluminescence analysis.

Original language	English
Article number	114230
Journal	Microelectronics Reliability
Volume	126
DOIs	https://doi.org/10.1016/j.microrel.2021.114230
Publication status	Published - 2021 Nov

Keywords

Degradation
Failure
PV modules
Snail trails

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Safety, Risk, Reliability and Quality
Surfaces, Coatings and Films
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.microrel.2021.114230

Cite this

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title = "Analysis of the impact of power loss due to snail trails in a 95-kWp photovoltaic power system",

abstract = "Snail trails are a prevalent degradation phenomenon observed in solar power plants. In a previous study, it was determined that snail trails affected only the appearance of solar cells, without significantly contributing to actual power loss. However, when snail trails are accompanied by solar cell cracks, power loss occurs. We analyzed the snail trails in a specific module in a 95 kW power plant that has been operational since 2015. Moreover, we evaluated the power generation loss arising from snail trails using current–voltage measurements and electroluminescence analysis.",

keywords = "Degradation, Failure, PV modules, Snail trails",

author = "Wonwook Oh and Hoonjoo Choi and Donghwan Kim",

note = "Funding Information: This research was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20193020010390 ). This research was also supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20203040010330 ). Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

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doi = "10.1016/j.microrel.2021.114230",

language = "English",

volume = "126",

journal = "Microelectronics and Reliability",

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T1 - Analysis of the impact of power loss due to snail trails in a 95-kWp photovoltaic power system

AU - Oh, Wonwook

AU - Choi, Hoonjoo

AU - Kim, Donghwan

N1 - Funding Information: This research was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20193020010390 ). This research was also supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20203040010330 ). Publisher Copyright: © 2021 Elsevier Ltd

PY - 2021/11

Y1 - 2021/11

N2 - Snail trails are a prevalent degradation phenomenon observed in solar power plants. In a previous study, it was determined that snail trails affected only the appearance of solar cells, without significantly contributing to actual power loss. However, when snail trails are accompanied by solar cell cracks, power loss occurs. We analyzed the snail trails in a specific module in a 95 kW power plant that has been operational since 2015. Moreover, we evaluated the power generation loss arising from snail trails using current–voltage measurements and electroluminescence analysis.

AB - Snail trails are a prevalent degradation phenomenon observed in solar power plants. In a previous study, it was determined that snail trails affected only the appearance of solar cells, without significantly contributing to actual power loss. However, when snail trails are accompanied by solar cell cracks, power loss occurs. We analyzed the snail trails in a specific module in a 95 kW power plant that has been operational since 2015. Moreover, we evaluated the power generation loss arising from snail trails using current–voltage measurements and electroluminescence analysis.

KW - Degradation

KW - Failure

KW - PV modules

KW - Snail trails

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U2 - 10.1016/j.microrel.2021.114230

DO - 10.1016/j.microrel.2021.114230

M3 - Article

AN - SCOPUS:85120922896

SN - 0026-2714

VL - 126

JO - Microelectronics and Reliability

JF - Microelectronics and Reliability

M1 - 114230

ER -

Analysis of the impact of power loss due to snail trails in a 95-kWp photovoltaic power system

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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